public class test {
    public static double avg(int[] array){
        int sum=0;
        for(int i=0;i<array.length;i++){
            sum+=array[i];
        }
       return (double)sum/ (double)array.length;
    }
    public static void main(String[] args) {
        int []array={1,2,3,4,5};
        System.out.println(avg(array));
    }
}
